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Wu, Jiun-Yu; Kwok, Oi-Man; Willson, Victor L. – Journal of Experimental Education, 2014
The authors compared the effects of using the true Multilevel Latent Growth Curve Model (MLGCM) with single-level regular and design-based Latent Growth Curve Models (LGCM) with or without the higher-level predictor on various criterion variables for multilevel longitudinal data. They found that random effect estimates were biased when the…
Descriptors: Longitudinal Studies, Hierarchical Linear Modeling, Prediction, Regression (Statistics)
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Wynton, Sarah K. A.; Anglim, Jeromy – Journal of Experimental Psychology: Learning, Memory, and Cognition, 2017
While researchers have often sought to understand the learning curve in terms of multiple component processes, few studies have measured and mathematically modeled these processes on a complex task. In particular, there remains a need to reconcile how abrupt changes in strategy use can co-occur with gradual changes in task completion time. Thus,…
Descriptors: Learning Strategies, Learning Processes, Bayesian Statistics, Computer Assisted Instruction
Anderson, Daniel; Alonzo, Julie; Tindal, Gerald – Behavioral Research and Teaching, 2010
easyCBM[R] is an online benchmark and progress monitoring assessment system designed for use within a response to intervention framework. Educators using easyCBM[R] are often interested in using the results to predict students' state test performance. In the following technical document, we report diagnostic efficiency statistics using a sample…
Descriptors: Efficiency, Curriculum Based Assessment, Mathematics Tests, Formative Evaluation
Anderson, Daniel; Alonzo, Julie; Tindal, Gerald – Behavioral Research and Teaching, 2010
The easyCBM[R] assessment system is an online benchmark and progress monitoring assessment system designed for use within a response to intervention framework. Educators using easyCBM[R] are often interested in using the results to predict students' state test performance. In the following technical document, we report diagnostic efficiency…
Descriptors: Efficiency, Curriculum Based Assessment, Mathematics Tests, Cutting Scores
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Möglich, Andreas – Journal of Chemical Education, 2018
The quantitative evaluation of experimental data and their graphical presentation are integral to teaching and research in chemistry and the life sciences. Data are commonly fitted to physical models, which in all but the simplest cases are expressed as nonlinear mathematical functions. To facilitate data evaluation in both teaching and research…
Descriptors: Least Squares Statistics, Data, Chemistry, Science Instruction
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Salzmann, Patrizia; Berweger, Simone; Ark, Tavinder K. – Journal of Career Development, 2018
Affective occupational commitment (AOC) during training is considered to prevent occupational turnover and positively influence later work-related outcomes and learning processes. However, little is known about AOC development in a training context. This study examines antecedents and consequences of AOC and its development during vocational…
Descriptors: Apprenticeships, Affective Behavior, Work Ethic, Staff Development
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Jerome, Lawrence – Mathematics and Computer Education, 2011
As anyone who has taught or taken a statistics course knows, statistical calculations can be tedious and error-prone, with the details of a calculation sometimes distracting students from understanding the larger concepts. Traditional statistics courses typically use scientific calculators, which can relieve some of the tedium and errors but…
Descriptors: Textbooks, Visual Learning, Graphs, Hypothesis Testing
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Guo, Hongwen; Zu, Jiyun; Kyllonen, Patrick; Schmitt, Neal – ETS Research Report Series, 2016
In this report, systematic applications of statistical and psychometric methods are used to develop and evaluate scoring rules in terms of test reliability. Data collected from a situational judgment test are used to facilitate the comparison. For a well-developed item with appropriate keys (i.e., the correct answers), agreement among various…
Descriptors: Scoring, Test Reliability, Statistical Analysis, Psychometrics
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Derouet, Charlotte; Parzysz, Bernard – ZDM: The International Journal on Mathematics Education, 2016
The teaching of probability has changed a great deal since the end of the last century. The development of technologies is indeed part of this evolution. In France, continuous probability distributions began to be studied in 2002 by scientific 12th graders, but this subject was marginal and appeared only as an application of integral calculus.…
Descriptors: Probability, Teaching Methods, Mathematics Instruction, Class Activities
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Capela, Emanuel V.; Santos, João H. P. M.; Boal-Palheiros, Isabel; Carvalho, Pedro J.; Coutinho, João A. P.; Ventura, Sónia P. M.; Freire, Mara G. – Chemical Engineering Education, 2019
Through the experiments described in this article, students become acquainted with the principles behind ternary liquid-liquid systems and/or Aqueous Two-Phase Systems (ATPS), and their characterization by the determination of the binodal curve, tie-lines, tie-line lengths and critical point, as well as in applying the non-random two-liquid model…
Descriptors: Chemistry, Science Instruction, Science Experiments, Scientific Concepts
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Laracy, Seth D.; Hojnoski, Robin L.; Dever, Bridget V. – Assessment for Effective Intervention, 2016
Receiver operating characteristic curve (ROC) analysis was used to investigate the ability of early numeracy curriculum-based measures (EN-CBM) administered in preschool to predict performance below the 25th and 40th percentiles on a quantity discrimination measure in kindergarten. Areas under the curve derived from a sample of 279 students ranged…
Descriptors: Numeracy, Kindergarten, Decision Making, Mathematics
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Pérez-Pereira, Miguel; Cruz, Raquel – First Language, 2018
The vocabulary size and composition of one group of full-term and three groups of low risk preterm children with different gestational ages (GA) were longitudinally compared at 10, 22 and 30 months of age. Expressive vocabulary development was assessed through the CDI. Cognitive development was also assessed at 22 months (Batelle Developmental…
Descriptors: Longitudinal Studies, Vocabulary Development, Biomedicine, Gender Differences
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Finch, Holmes; Edwards, Julianne M. – Educational and Psychological Measurement, 2016
Standard approaches for estimating item response theory (IRT) model parameters generally work under the assumption that the latent trait being measured by a set of items follows the normal distribution. Estimation of IRT parameters in the presence of nonnormal latent traits has been shown to generate biased person and item parameter estimates. A…
Descriptors: Item Response Theory, Computation, Nonparametric Statistics, Bayesian Statistics
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Baker, Ryan S.; Hershkovitz, Arnon; Rossi, Lisa M.; Goldstein, Adam B.; Gowda, Sujith M. – Journal of the Learning Sciences, 2013
We present a new method for analyzing a student's learning over time for a specific skill: analysis of the graph of the student's moment-by-moment learning over time. Moment-by-moment learning is calculated using a data-mined model that assesses the probability that a student learned a skill or concept at a specific time during learning (Baker,…
Descriptors: Learning Processes, Intelligent Tutoring Systems, Probability, Skill Development
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Blanco, Monica; Ginovart, Marta – International Journal of Mathematical Education in Science and Technology, 2010
Little has been explored with regard to introducing historical aspects in the undergraduate statistics classroom in engineering studies. This article focuses on the design, implementation and assessment of a specific activity concerning the introduction of the normal probability curve and related aspects from a historical dimension. Following a…
Descriptors: Engineering Education, College Mathematics, Mathematics Instruction, Statistics
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